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WO1999003671A1 - Footwear item, moulding device used for making same and manufacturing method - Google Patents

Footwear item, moulding device used for making same and manufacturing method Download PDF

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Publication number
WO1999003671A1
WO1999003671A1 PCT/FR1998/001564 FR9801564W WO9903671A1 WO 1999003671 A1 WO1999003671 A1 WO 1999003671A1 FR 9801564 W FR9801564 W FR 9801564W WO 9903671 A1 WO9903671 A1 WO 9903671A1
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WO
WIPO (PCT)
Prior art keywords
mold
cavity
rod
assembly
thermoplastic material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/FR1998/001564
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French (fr)
Inventor
Loïc Seuzaret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LA FOURMI
Original Assignee
LA FOURMI
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Filing date
Publication date
Application filed by LA FOURMI filed Critical LA FOURMI
Publication of WO1999003671A1 publication Critical patent/WO1999003671A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/061—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/065—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by compression moulding, vulcanising or the like

Definitions

  • the present invention relates to an article of footwear, a molding device used for the manufacture of this article and a method of manufacturing this article.
  • thermoplastic material in particular polyvinyl chloride
  • French patent application no. 2 484 215 describes a sports shoe comprising a vamp and / or a heel formed by a sock made of textile material on which bands are molded making openings between them, a full sole being also formed at the during this molding. This full sole does not solve the aforementioned perspiration problem.
  • the invention specifically aims to solve this problem but while retaining good non-slip properties to the footwear as well as easy, quick and inexpensive manufacture thereof.
  • the footwear it relates to comprises, in a manner known per se, a part forming a rod and a part forming a first fitting.
  • the first assembly forming part is made of a ventilated structure material, in particular of textile material;
  • the footwear comprises an edge made of molded thermoplastic material, covering at least the lower peripheral edge of the first assembly portion and adhering thereto, and
  • the footwear comprises, on the outer face of the first assembly portion, raised areas of thermoplastic material, molded with said border, which connect two zones mutually distant from this border and which constitute with it a perforated sole of the article.
  • the footwear according to the invention allows good ventilation of the foot and has an attractive visual appearance. Its openwork sole limits the wear on its first part and gives it good non-slip properties.
  • the border and the raised areas are molded in a single operation, so that the footwear remains relatively quick, simple and inexpensive to manufacture.
  • thermoplastic material used can be of common type, in particular be polyvinyl chloride.
  • the rod part and the first part can be assembled to each other by any suitable means, in particular sewing or gluing.
  • the border covers not only the lower peripheral edge of the first mounting but also the lateral peripheral edge of the first and the areas of the rod portion which are adjacent to this lateral peripheral edge, so that this border allows the assembly of said rod and first parts, or at least participates greatly in this assembly.
  • the rod and first parts may thus not be assembled to each other prior to molding and may simply be kept in an adequate position with respect to each other for the time of this molding, by suitable means such as points. These same parts can also be simply joined by a light seam ensuring their maintenance in position.
  • the parts forming the upper and the first can belong to the same piece, such as a sock or a slipper.
  • the border if it extends over the aforementioned areas of the rod-forming part, then makes it possible to mark the angle between the rod-forming part and the first-forming part.
  • the footwear may include a first insole, placed above the first fitting. This first cleanliness and the rod may belong to the same piece, such as a sock or a slipper, against the underside of which is placed the first assembly.
  • said raised areas are arranged in the form of strips perpendicular to the longitudinal axis of the footwear, to have a good non-slip effect.
  • This effect is increased by giving these areas a non-rectilinear, more or less wide shape, in particular wavy, serrated, crenellated, zigzag, etc.
  • the molding device according to the invention comprises, in a manner known per se:
  • a mold proper comprising two half-shells movable with respect to each other, each delimiting part of a mold cavity of the sole of the article, these half-shells being able to be mutually assembled to delimit said mold cavity and mutually separated to allow release of the article after completion of the sole;
  • the mold comprises grooves arranged in its wall which delimits the bottom of said cavity, these grooves being intended to be invaded by the thermoplastic material to constitute said raised areas, and
  • the mold and the shape are shaped so that the first assembly portion is pressed against the wall defining the bottom of the molding cavity, between said grooves, when said shape is placed and is held against said mold.
  • the mold cavity is shaped so as to provide an edge covering not only the lower peripheral edge of the first assembly part but also the lateral peripheral edge of this part and the regions of the part forming rod adjacent to this lateral peripheral edge.
  • thermoplastic material into the mold cavity, so as to fill the empty spaces of this cavity, and, after the thermoplastic material has cooled
  • Figure 1 is a perspective view of the footwear, sole up;
  • Figure 2 is an enlarged view, in section along the line II-II of Figure 1;
  • Figure 3 is a side view in longitudinal section of the molding device, and
  • Figure 4 is a cross-sectional view of this device.
  • Figures 1 and 2 show, from different angles, an article of footwear 1 of the children's shoe type.
  • This article 1 includes: - a rod 2 and first of cleanliness 3 assembled 1 'to one another by a seam 4;
  • this sole 6 includes an edge 7 covering the lower and lateral peripheral edges of the first mounting 5 and the zones of the rod 2 adjacent to this lateral peripheral edge, as well as transverse bands 8 in relief which connect two zones mutually distant from this border 7.
  • the molding device 10 comprises a mold 11 proper and a shape 12.
  • the mold 11 is constituted by two half-shells 11a, 11b movable with respect to each other, each delimiting a part of a molding cavity of the sole 6. These half-shells 11a, 11b can be mutually assembled to delimit said molding cavity and mutually separated to allow the release of the article 1 after completion of the sole 6.
  • the wall 13 of the mold 11 which delimits the bottom of said cavity comprises transverse grooves arranged in it, inside the mold cavity, these grooves being intended to be invaded by the thermoplastic material to constitute said strips 8.
  • the mold 11 and the form 12 are shaped so that the first mounting 5 is pressed against the wall 13, between said grooves, when said form 12 is placed and is held against said mold 11.
  • This positioning of form 12 allows in addition, by means of the half-shells 11a, 11b, of pressing the rod 2 against the rim 14 of the mold 11 delimiting the upper part of the molding cavity in order to close this cavity in a sealed manner to the thermoplastic material.
  • the rod-first cleaning assembly is engaged on the form 12 then the first mounting 5 is placed in the molding cavity, against the wall 13.
  • the form 12 is then placed and maintained above the mold 11 and the half-shells 11a, 11b are assembled so that the lower region of the rod 2 is pressed against the flange 14.
  • thermoplastic material is then injected into the cavity of the mold 11, so as to fill the empty spaces of this cavity, existing at the lower and lateral peripheral edges of the first mounting 5, areas of the rod 2 adjacent to this edge side and grooves.
  • the two half-shells 11a, 11b are separated in order to demold the article 1.
  • the invention thus provides an article of footwear allowing good ventilation of the foot, having an attractive visual appearance, retaining limited wear of the first part and having good non-slip properties, while retaining an easy, rapid and inexpensive manufacture.
  • the mold 11 can comprise, in a conventional manner, half-shells delimiting the molding cavity only laterally and a base plate, commonly called “block”, distinct from these half-shells, which delimits the bottom of the cavity. molding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention concerns a footwear item comprising a first part forming an upper (2) and a part forming a mounting insole (5), around which is moulded a thermoplastic sole (6). The invention is characterised in that: the part forming a mounting insole (5) is made of a material with aerated fabric, in particular a textile material, the item (1) comprises a moulded thermoplastic rim (7), covering at least the lower peripheral edge of the part forming a mounting insole (5) and adhering thereto; and the item (1) comprises, on the external surface of the part forming the mounting insole (5), thermoplastic embossed zones, moulded with said rim (7), linking two mutually spaced zones of said rim (7) and constituting therewith an open-worked sole (6).

Description

ARTICLE CHAUSSANT, DISPOSITIF DE MOULAGE UTILISE FOOTWEAR, MOLDING DEVICE USED

POUR LA FABRICATION DE CET ARTICLE ET PROCEDEFOR THE MANUFACTURE OF THIS ARTICLE AND PROCESS

DE FABRICATION DE CET ARTICLEFOR MANUFACTURING THIS ARTICLE

La présente invention concerne un article chaussant, un dispositif de moulage utilisé pour la fabrication de cet article et un procédé de fabrication de cet article.The present invention relates to an article of footwear, a molding device used for the manufacture of this article and a method of manufacturing this article.

Il est bien connu de réaliser un article chaussant en moulant une semelle en matière thermoplastique, notamment du polychlorure de vinyle, autour d'une tige et d'une première de montage.It is well known to produce an article of footwear by molding a sole made of thermoplastic material, in particular polyvinyl chloride, around a rod and a first fitting.

Un tel procédé permet la réalisation facile, rapide et peu onéreuse d'articles chaussants, mais l'article obtenu a toutefois pour inconvénient de provoquer une certaine transpiration des pieds. En outre, l'aspect visuel de l'article n'est guère attractif ni adapté pour des articles chaussants particuliers tels que des chaussures pour enfants ou des pantoufles, notamment.Such a process allows the easy, quick and inexpensive production of footwear, but the article obtained has the drawback, however, of causing perspiration of the feet. In addition, the visual aspect of the article is hardly attractive or suitable for particular footwear such as children's shoes or slippers, in particular.

La demande de brevet français n° 2 484 215 décrit une chaussure de sport comprenant une empeigne et/ou un talon formés par une chaussette en matière textile sur laquelle sont moulées des bandes aménageant des ajours entre elles, une semelle pleine étant par ailleurs formée au cours de ce moulage. Cette semelle pleine ne permet pas de solutionner le problème de transpiration précité.French patent application no. 2 484 215 describes a sports shoe comprising a vamp and / or a heel formed by a sock made of textile material on which bands are molded making openings between them, a full sole being also formed at the during this molding. This full sole does not solve the aforementioned perspiration problem.

L'invention a précisément pour but de solutionner ce problème mais tout en conservant de bonnes propriétés antidérapantes à l'article chaussant ainsi qu'une fabrication facile, rapide et peu onéreuse de celui-ci.The invention specifically aims to solve this problem but while retaining good non-slip properties to the footwear as well as easy, quick and inexpensive manufacture thereof.

L'article chaussant qu'elle concerne comprend, de manière connue en soi, une partie formant tige et une partie formant première de montage.The footwear it relates to comprises, in a manner known per se, a part forming a rod and a part forming a first fitting.

Selon 1 ' invention, - la partie formant première de montage est en matériau à structure aérée, notamment en matériau textile ;According to the invention, - The first assembly forming part is made of a ventilated structure material, in particular of textile material;

- l'article chaussant comprend une bordure en matière thermoplastique moulée, recouvrant au moins le bord périphérique inférieur de la partie formant première de montage et adhérant à celui-ci, etthe footwear comprises an edge made of molded thermoplastic material, covering at least the lower peripheral edge of the first assembly portion and adhering thereto, and

- l'article chaussant comprend, sur la face extérieure de la partie formant première de montage, des zones en relief de matière thermoplastique, moulées avec ladite bordure, qui relient deux zones mutuellement distantes de cette bordure et qui constituent avec elle une semelle ajourée de l'article.- the footwear comprises, on the outer face of the first assembly portion, raised areas of thermoplastic material, molded with said border, which connect two zones mutually distant from this border and which constitute with it a perforated sole of the article.

L'article chaussant selon l'invention permet une bonne aération du pied et a un aspect visuel attractif. Sa semelle ajourée limite l'usure de sa partie formant première et lui confère de bonnes propriétés antidérapantes .The footwear according to the invention allows good ventilation of the foot and has an attractive visual appearance. Its openwork sole limits the wear on its first part and gives it good non-slip properties.

Cette semelle permet ainsi l'utilisation de l'article sur des sols lisses tels que des carrelages, parquets ou revêtements plastifiés, sans risques de glissements.This sole thus allows the use of the article on smooth floors such as tiles, parquet or plastic coatings, without risk of slipping.

La bordure et les zones en relief sont moulées en une même opération, de sorte que l'article chaussant reste relativement rapide, simple et peu onéreux à fabriquer.The border and the raised areas are molded in a single operation, so that the footwear remains relatively quick, simple and inexpensive to manufacture.

La matière thermoplastique employée peut être de type courant, en particulier être du polychlorure de vinyle.The thermoplastic material used can be of common type, in particular be polyvinyl chloride.

La partie formant tige et la partie formant première peuvent être assemblées l'une à l'autre par tout moyen approprié, notamment couture ou collage. De préférence toutefois, la bordure recouvre non seulement le bord périphérique inférieur de la première de montage mais également le bord périphérique latéral de cette première ainsi que les zones de la partie formant tige qui sont adjacentes à ce bord périphérique latéral, de sorte que cette bordure permet l'assemblage desdites parties formant tige et première, ou tout au moins participe grandement à cet assemblage.The rod part and the first part can be assembled to each other by any suitable means, in particular sewing or gluing. Preferably, however, the border covers not only the lower peripheral edge of the first mounting but also the lateral peripheral edge of the first and the areas of the rod portion which are adjacent to this lateral peripheral edge, so that this border allows the assembly of said rod and first parts, or at least participates greatly in this assembly.

Les parties formant tige et première peuvent ainsi ne pas être assemblées l'une à l'autre préalablement au moulage et être simplement maintenues en position adéquate l'une par rapport à l'autre le temps de ce moulage, par des moyens appropriés tels que des pointes. Ces mêmes parties peuvent également être simplement réunies par une couture légère assurant leur maintien en position.The rod and first parts may thus not be assembled to each other prior to molding and may simply be kept in an adequate position with respect to each other for the time of this molding, by suitable means such as points. These same parts can also be simply joined by a light seam ensuring their maintenance in position.

En variante, les parties formant tige et première peuvent appartenir à une même pièce, telle qu'une chaussette ou un chausson. La bordure, si elle s'étend sur les zones précitées de la partie formant tige, permet alors de marquer l'angle entre la partie formant tige et la partie formant première.As a variant, the parts forming the upper and the first can belong to the same piece, such as a sock or a slipper. The border, if it extends over the aforementioned areas of the rod-forming part, then makes it possible to mark the angle between the rod-forming part and the first-forming part.

L'article chaussant peut comprendre une première de propreté, placée au-dessus de la première de montage. Cette première de propreté et la tige peuvent appartenir à une même pièce, telle qu'une chaussette ou un chausson, contre la face inférieure de laquelle est placée la première de montage.The footwear may include a first insole, placed above the first fitting. This first cleanliness and the rod may belong to the same piece, such as a sock or a slipper, against the underside of which is placed the first assembly.

De préférence, lesdites zones en relief sont aménagées sous forme de bandes perpendiculaires à 1 ' axe longitudinal de l'article chaussant, pour présenter un bon effet antidérapant. Cet effet est augmenté en donnant à ces zones une forme non rectiligne, plus ou moins large, notamment ondulée, dentelée, crénelée, en zigzag, etc.Preferably, said raised areas are arranged in the form of strips perpendicular to the longitudinal axis of the footwear, to have a good non-slip effect. This effect is increased by giving these areas a non-rectilinear, more or less wide shape, in particular wavy, serrated, crenellated, zigzag, etc.

Le dispositif de moulage selon l'invention comprend, de manière connue en soi :The molding device according to the invention comprises, in a manner known per se:

- un moule proprement dit, comprenant deux demi- coquilles mobiles l'une par rapport à l'autre, délimitant chacune une partie d'une cavité de moulage de la semelle de l'article, ces demi-coquilles pouvant être mutuellement assemblées pour délimiter ladite cavité de moulage et mutuellement écartées pour permettre le démoulage de l'article après réalisation de la semelle ;- a mold proper, comprising two half-shells movable with respect to each other, each delimiting part of a mold cavity of the sole of the article, these half-shells being able to be mutually assembled to delimit said mold cavity and mutually separated to allow release of the article after completion of the sole;

- une forme sur laquelle peut être engagée au moins la partie formant tige de l'article, cette forme pouvant être placée et maintenue au-dessus de ladite cavité de moulage, de telle sorte que cette partie formant tige soit pressée contre le rebord du moule délimitant la partie supérieure de la cavité de moulage afin de fermer cette cavité de manière étanche à la matière thermoplastique.- A shape on which can be engaged at least the rod-forming part of the article, this form being able to be placed and maintained above said molding cavity, so that this rod-forming part is pressed against the rim of the mold delimiting the upper part of the molding cavity in order to close this cavity in a sealed manner to the thermoplastic material.

Selon 1 ' invention,According to the invention,

- le moule comprend des rainures aménagées dans sa paroi qui délimite le fond de ladite cavité, ces rainures étant destinées à être envahies par la matière thermoplastique pour constituer lesdites zones en relief, etthe mold comprises grooves arranged in its wall which delimits the bottom of said cavity, these grooves being intended to be invaded by the thermoplastic material to constitute said raised areas, and

- le moule et la forme sont conformés de telle sorte que la partie formant première de montage est pressée contre la paroi délimitant le fond de la cavité de moulage, entre lesdites rainures, lorsque ladite forme est placée et est maintenue contre ledit moule.- The mold and the shape are shaped so that the first assembly portion is pressed against the wall defining the bottom of the molding cavity, between said grooves, when said shape is placed and is held against said mold.

Ce pressage de la partie formant première de montage contre le fond de la cavité de moulage ferme de manière étanche les espaces délimités par lesdites rainures, afin d'empêcher à la matière thermoplastique de fluer au-delà de ces rainures et de recouvrir ladite partie formant première en dehors de ces rainures.This pressing of the first assembly portion forming against the bottom of the molding cavity sealingly closes the spaces delimited by said grooves, in order to prevent the thermoplastic material from creeping beyond these grooves and covering said forming portion. first outside of these grooves.

Le cas échéant, ainsi que précité, la cavité du moule est conformée de manière à aménager une bordure recouvrant non seulement le bord périphérique inférieur de la partie formant première de montage mais également le bord périphérique latéral de cette partie et les zones de la partie formant tige adjacentes à ce bord périphérique latéral. Le procédé de fabrication de 1 ' article chaussant précité, au moyen de ce dispositif de moulage, comprend les étapes consistant :Where appropriate, as mentioned above, the mold cavity is shaped so as to provide an edge covering not only the lower peripheral edge of the first assembly part but also the lateral peripheral edge of this part and the regions of the part forming rod adjacent to this lateral peripheral edge. The method of manufacturing the aforementioned footwear, by means of this molding device, comprises the steps consisting in:

- à engager la partie formant tige sur la forme ; - à positionner la partie formant première de montage sur cette forme ou dans la cavité du moule ;- engaging the rod portion on the form; - Positioning the first assembly part on this form or in the mold cavity;

- à placer et à maintenir la forme sur le moule de telle sorte que la partie formant première de montage soit pressée contre la paroi délimitant le fond de la cavité de moulage et que la partie formant tige soit pressée contre le rebord supérieur du moule pour fermer la cavité de manière étanche à la matière thermoplastique ;- Place and maintain the shape on the mold so that the first assembly part is pressed against the wall delimiting the bottom of the mold cavity and the rod part is pressed against the upper edge of the mold to close the cavity in a sealed manner to the thermoplastic material;

- à injecter la matière thermoplastique dans la cavité du moule, de manière a remplir les espaces vides de cette cavité, et, après refroidissement de la matière thermoplastique,- injecting the thermoplastic material into the mold cavity, so as to fill the empty spaces of this cavity, and, after the thermoplastic material has cooled,

- à séparer les deux demi-coquilles afin de démouler 1 ' article .- to separate the two half-shells in order to unmold the article.

Pour sa bonne compréhension, l'invention est à nouveau décrite ci-dessous en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme de réalisation préférée de l'article chaussant qu'elle concerne et du dispositif de moulage utilisé pour la fabrication de cet article. La figure 1 est une vue en perspective de l'article chaussant, semelle vers le haut ; la figure 2 en est une vue à échelle agrandie, en coupe selon la ligne II-II de la figure 1 ; la figure 3 est une vue de côté et en coupe longitudinale du dispositif de moulage, et la figure 4 est une vue en coupe transversale de ce dispositif.For a good understanding, the invention is again described below with reference to the appended schematic drawing representing, by way of nonlimiting example, a preferred embodiment of the footwear it relates to and of the molding device used to make this item. Figure 1 is a perspective view of the footwear, sole up; Figure 2 is an enlarged view, in section along the line II-II of Figure 1; Figure 3 is a side view in longitudinal section of the molding device, and Figure 4 is a cross-sectional view of this device.

Les figures 1 et 2 représentent, sous différents angles, un article chaussant 1 de type chaussure d'enfant. Cet article 1 comprend : - une tige 2 et première de propreté 3 assemblées 1 ' une à 1 ' autre par une couture 4 ;Figures 1 and 2 show, from different angles, an article of footwear 1 of the children's shoe type. This article 1 includes: - a rod 2 and first of cleanliness 3 assembled 1 'to one another by a seam 4;

- une première de montage 5 en matériau à structure aérée, en particulier en matériau textile plus ou moins compressible, placée au-dessous de la première de propreté 3, eta first assembly 5 of material with an aerated structure, in particular of more or less compressible textile material, placed below the first of cleanliness 3, and

- une semelle 6 moulée en une seule pièce de polychlorure de vinyle ; cette semelle 6 comprend une bordure 7 recouvrant les bords périphériques inférieur et latéral de la première de montage 5 et les zones de la tige 2 adjacentes à ce bord périphérique latéral, ainsi que des bandes transversales 8 en relief qui relient deux zones mutuellement distantes de cette bordure 7.- a sole 6 molded in a single piece of polyvinyl chloride; this sole 6 includes an edge 7 covering the lower and lateral peripheral edges of the first mounting 5 and the zones of the rod 2 adjacent to this lateral peripheral edge, as well as transverse bands 8 in relief which connect two zones mutually distant from this border 7.

Le dispositif 10 de moulage comprend un moule 11 proprement dit et une forme 12.The molding device 10 comprises a mold 11 proper and a shape 12.

Le moule 11 est constitué par deux demi-coquilles lia, 11b mobiles l'une par rapport à l'autre, délimitant chacune une partie d'une cavité de moulage de la semelle 6. Ces demi-coquilles lia, 11b peuvent être mutuellement assemblées pour délimiter ladite cavité de moulage et mutuellement écartées pour permettre le démoulage de l'article 1 après réalisation de la semelle 6.The mold 11 is constituted by two half-shells 11a, 11b movable with respect to each other, each delimiting a part of a molding cavity of the sole 6. These half-shells 11a, 11b can be mutually assembled to delimit said molding cavity and mutually separated to allow the release of the article 1 after completion of the sole 6.

La paroi 13 du moule 11 qui délimite le fond de ladite cavité comprend des rainures transversales aménagées en elle, à l'intérieur de la cavité de moulage, ces rainures étant destinées à être envahies par la matière thermoplastique pour constituer lesdites bandes 8.The wall 13 of the mold 11 which delimits the bottom of said cavity comprises transverse grooves arranged in it, inside the mold cavity, these grooves being intended to be invaded by the thermoplastic material to constitute said strips 8.

Le moule 11 et la forme 12 sont conformés de telle sorte que la première de montage 5 est pressée contre la paroi 13, entre lesdites rainures, lorsque ladite forme 12 est placée et est maintenue contre ledit moule 11. Ce positionnement de la forme 12 permet en outre, au moyen des demi-coquilles lia, 11b, de presser la tige 2 contre le rebord 14 du moule 11 délimitant la partie supérieure de la cavité de moulage afin de fermer cette cavité de manière étanche à la matière thermoplastique. En pratique, l'ensemble tige-première de propreté est engagé sur la forme 12 puis la première de montage 5 est placée dans la cavité de moulage, contre la paroi 13. La forme 12 est ensuite placée et maintenue au-dessus du moule 11 et les demi-coquilles lia, 11b sont assemblées de telle sorte que la zone inférieure de la tige 2 soit pressée contre le rebord 14.The mold 11 and the form 12 are shaped so that the first mounting 5 is pressed against the wall 13, between said grooves, when said form 12 is placed and is held against said mold 11. This positioning of form 12 allows in addition, by means of the half-shells 11a, 11b, of pressing the rod 2 against the rim 14 of the mold 11 delimiting the upper part of the molding cavity in order to close this cavity in a sealed manner to the thermoplastic material. In practice, the rod-first cleaning assembly is engaged on the form 12 then the first mounting 5 is placed in the molding cavity, against the wall 13. The form 12 is then placed and maintained above the mold 11 and the half-shells 11a, 11b are assembled so that the lower region of the rod 2 is pressed against the flange 14.

La matière thermoplastique est alors injectée dans la cavité du moule 11, de manière à remplir les espaces vides de cette cavité, existant au niveau des bords périphériques inférieur et latéral de la première de montage 5, des zones de la tige 2 adjacentes à ce bord latéral et des rainures.The thermoplastic material is then injected into the cavity of the mold 11, so as to fill the empty spaces of this cavity, existing at the lower and lateral peripheral edges of the first mounting 5, areas of the rod 2 adjacent to this edge side and grooves.

Le pressage de la première de montage 5 contre le fond de la cavité de moulage ferme de manière étanche les espaces délimités par ces rainures, afin d'empêcher à la matière thermoplastique de fluer au-delà de ces rainures.Pressing the first mounting 5 against the bottom of the mold cavity seals the spaces delimited by these grooves, in order to prevent the thermoplastic material from creeping beyond these grooves.

Après refroidissement de la matière thermoplastique, les deux demi-coquilles lia, 11b sont séparées afin de démouler l'article 1.After the thermoplastic material has cooled, the two half-shells 11a, 11b are separated in order to demold the article 1.

L'invention fournit ainsi un article chaussant permettant une bonne aération du pied, ayant un aspect visuel attractif, conservant une usure limitée de la partie formant première et ayant de bonnes propriétés antidérapantes, tout en conservant une fabrication facile, rapide et peu onéreuse.The invention thus provides an article of footwear allowing good ventilation of the foot, having an attractive visual appearance, retaining limited wear of the first part and having good non-slip properties, while retaining an easy, rapid and inexpensive manufacture.

Il va de soi que l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus à titre d'exemple mais qu'elle en embrasse, au contraire, toutes les variantes de réalisation. Ainsi, le moule 11 peut comprendre, de manière classique, des demi-coquilles délimitant la cavité de moulage uniquement latéralement et une plaque de base, couramment dénommée "pavé", distincte de ces demi-coquilles, qui délimite le fond de la cavité de moulage. It goes without saying that the invention is not limited to the embodiment described above by way of example but that it embraces, on the contrary, all the variant embodiments. Thus, the mold 11 can comprise, in a conventional manner, half-shells delimiting the molding cavity only laterally and a base plate, commonly called "block", distinct from these half-shells, which delimits the bottom of the cavity. molding.

Claims

REVENDICATIONS 1 - Article chaussant, comprenant une partie formant tige ( 2 ) et une partie formant première de montage (5), autour desquelles est moulée une semelle (6) en matière thermoplastique, caractérisé :1 - Footwear, comprising a part forming a rod (2) and a part forming a first mounting (5), around which is molded a sole (6) of thermoplastic material, characterized: - en ce que la partie formant première de montage (5) est en matériau à structure aérée, notamment en matériau textile ;- in that the first assembly forming part (5) is made of a ventilated structure material, in particular of textile material; - en ce qu ' il comprend une bordure ( 7 ) en matière thermoplastique moulée, recouvrant au moins le bord périphérique inférieur de la partie formant première de montage (5) et adhérant à celui-ci, et- in that it comprises an edge (7) of molded thermoplastic material, covering at least the lower peripheral edge of the first assembly portion (5) and adhering thereto, and - en ce qu'il comprend, sur la face extérieure de la partie formant première de montage (5), des zones en relief (8) de matière thermoplastique, moulées avec ladite bordure (7), qui relient deux zones mutuellement distantes de cette bordure ( 7 ) et qui constituent avec elle une semelle (6) ajourée.- in that it comprises, on the external face of the first assembly portion (5), raised zones (8) of thermoplastic material, molded with said edge (7), which connect two zones mutually distant from this border (7) and which constitute with it a perforated sole (6). 2 - Article chaussant selon la revendication 1, caractérisé en ce que la bordure (7) recouvre non seulement le bord périphérique inférieur de la première de montage (5) mais également le bord périphérique latéral de cette première (5) ainsi que les zones de la partie formant tige (2) qui sont adjacentes à ce bord périphérique latéral, de sorte que cette bordure (7) permet l'assemblage desdites parties formant tige (2) et première ( 5 ) , ou tout au moins participe grandement à cet assemblage.2 - Footwear according to claim 1, characterized in that the edge (7) covers not only the lower peripheral edge of the first mounting (5) but also the lateral peripheral edge of this first (5) as well as the areas of the rod part (2) which are adjacent to this lateral peripheral edge, so that this border (7) allows the assembly of said rod (2) and first (5) parts, or at least participates greatly in this assembly . 3 - Article chaussant selon la revendication 1 ou la revendication 2, caractérisé en ce que les parties (2,3 - Footwear according to claim 1 or claim 2, characterized in that the parts (2, 5) formant tige et première peuvent appartenir à une même pièce, telle qu'une chaussette ou un chausson.5) forming a rod and the first can belong to the same piece, such as a sock or a slipper. 4 - Article chaussant selon l'une des revendications 1 à 3 , caractérisé en ce qu ' il comprend une première de propreté (3), placée au-dessus de la première de montage ( 5 ) . 5 - Article chaussant selon la revendication 4, caractérisé en ce que la première de propreté (3) et la tige (2) appartiennent à une même pièce, telle qu'une chaussette ou un chausson, contre la face inférieure de laquelle est placée la première de montage (5).4 - Footwear according to one of claims 1 to 3, characterized in that it comprises a first cleanliness (3), placed above the first assembly (5). 5 - Footwear according to claim 4, characterized in that the first of cleanliness (3) and the upper (2) belong to the same piece, such as a sock or a slipper, against the underside of which is placed the first assembly (5). 6 - Article chaussant selon l'une des revendications 1 à 5, caractérisé en ce que les zones en relief ( 8 ) sont aménagées sous forme de bandes perpendiculaires à son axe longitudinal. 7 - Article chaussant selon l'une des revendications 1 à 6, caractérisé en ce que les zones en relief (8) ont une forme non rectiligne, plus ou moins large, notamment ondulée, dentelée, crénelée, en zigzag.6 - Footwear according to one of claims 1 to 5, characterized in that the raised areas (8) are arranged in the form of strips perpendicular to its longitudinal axis. 7 - Footwear according to one of claims 1 to 6, characterized in that the raised areas (8) have a non-rectilinear shape, more or less wide, in particular wavy, serrated, crenellated, zigzag. 8 - Dispositif de moulage de l'article chaussant selon l'une des revendications 1 à 6, comprenant :8 - Device for molding the footwear according to one of claims 1 to 6, comprising: - un moule (11) proprement dit, comprenant deux demi-coquilles (lia, 11b) mobiles l'une par rapport à l'autre, délimitant chacune une partie d'une cavité de moulage de la semelle (6), ces demi-coquilles (lia, 11b) pouvant être mutuellement assemblées pour délimiter ladite cavité de moulage et mutuellement écartées pour permettre le démoulage de l'article (1) après réalisation de la semelle ( 6 ) ;- a mold (11) proper, comprising two half-shells (11a, 11b) movable relative to each other, each delimiting part of a mold cavity of the sole (6), these half shells (11a, 11b) which can be mutually assembled to delimit said mold cavity and mutually separated to allow the article (1) to be removed from the mold after completion of the sole (6); - une forme (12) sur laquelle peut être engagée au moins la partie formant tige (2) de l'article (1), cette forme (12) pouvant être placée et maintenue au-dessus de ladite cavité de moulage, de telle sorte que cette partie formant tige (2) soit pressée contre le rebord (14) du moule (11) délimitant la partie supérieure de la cavité de moulage afin de fermer cette cavité de manière étanche à la matière thermoplastique, dispositif caractérisé en ce que :- A form (12) on which can be engaged at least the rod portion (2) of the article (1), this form (12) being able to be placed and maintained above said molding cavity, so that this rod-forming part (2) is pressed against the rim (14) of the mold (11) delimiting the upper part of the molding cavity in order to close this cavity in a sealed manner to the thermoplastic material, device characterized in that: - le moule (11) comprend des rainures aménagées dans sa paroi (13) qui délimite le fond de ladite cavité, ces rainures étant destinées à être envahies par la matière thermoplastique pour constituer lesdites zones en relief (8), et- The mold (11) comprises grooves arranged in its wall (13) which delimits the bottom of said cavity, these grooves being intended to be invaded by the thermoplastic material to form said raised areas (8), and - le moule (11) et la forme (12) sont conformés de telle sorte que la partie formant première de montage (5) est pressée contre la paroi (13) délimitant le fond de la cavité de moulage, entre lesdites rainures, lorsque ladite forme (12) est placée et est maintenue contre ledit moule (11).- The mold (11) and the shape (12) are shaped so that the first assembly portion (5) is pressed against the wall (13) delimiting the bottom of the molding cavity, between said grooves, when said form (12) is placed and is held against said mold (11). 9 - Dispositif de moulage selon la revendication 8, caractérisé en ce que la cavité du moule (11) est conformée de manière à aménager une bordure ( 7 ) recouvrant non seulement le bord périphérique inférieur de la partie formant première de montage (5) mais également le bord périphérique latéral de cette partie 5 et les zones de la partie formant tige (2) adjacentes à ce bord périphérique latéral.9 - Molding device according to claim 8, characterized in that the mold cavity (11) is shaped so as to provide an edge (7) covering not only the lower peripheral edge of the first assembly portion (5) but also the lateral peripheral edge of this part 5 and the zones of the rod-forming part (2) adjacent to this lateral peripheral edge. 10 - Procédé de fabrication de l'article chaussant selon l'une des revendications 1 à 6, au moyen du dispositif de moulage selon la revendication 8 ou la revendication 9, caractérisé en ce qu'il comprend les étapes consistant :10 - Method of manufacturing the footwear according to one of claims 1 to 6, by means of the molding device according to claim 8 or claim 9, characterized in that it comprises the steps consisting: - à engager la partie formant tige (2) sur la forme (12) ;- engaging the rod part (2) on the form (12); - à positionner la partie formant première de montage (5) sur cette forme (12) ou dans la cavité du moule (11) ;- Positioning the first assembly part (5) on this form (12) or in the mold cavity (11); - à placer et à maintenir la forme ( 12 ) sur le moule (11) de telle sorte que la partie formant première de montage (5) soit pressée contre la paroi (13) délimitant le fond de la cavité de moulage et que la partie formant tige (2) soit pressée contre le rebord supérieur (14) du moule (11) pour fermer la cavité de manière étanche à la matière thermoplastique ;- Place and maintain the shape (12) on the mold (11) so that the first assembly portion (5) is pressed against the wall (13) delimiting the bottom of the mold cavity and that the part forming a rod (2) is pressed against the upper rim (14) of the mold (11) to close the cavity in a sealed manner to the thermoplastic material; - à injecter la matière thermoplastique dans la cavité du moule, de manière à remplir les espaces vides de cette cavité, et, après refroidissement de la matière thermoplastique,- injecting the thermoplastic material into the mold cavity, so as to fill the empty spaces with this cavity, and, after the thermoplastic material has cooled, - à séparer les deux demi-coquilles (lia, 11b) afin de démouler l'article (1). - to separate the two half-shells (11a, 11b) in order to demold the article (1).
PCT/FR1998/001564 1997-07-17 1998-07-16 Footwear item, moulding device used for making same and manufacturing method Ceased WO1999003671A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9709311A FR2766067B1 (en) 1997-07-17 1997-07-17 FOOTWEAR, MOLDING DEVICE FOR THE MANUFACTURE OF THIS ARTICLE, AND METHOD OF MANUFACTURING THIS ARTICLE
FR97/09311 1997-07-17

Publications (1)

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WO1999003671A1 true WO1999003671A1 (en) 1999-01-28

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WO (1) WO1999003671A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014213303B4 (en) * 2014-07-09 2019-11-07 Adidas Ag Multifunctional outdoor shoe, especially mountaineering shoe, mountain running shoe, trail running shoe or climbing shoe, and method for its production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1146919A (en) * 1956-03-23 1957-11-18 Special application of thermoplastic injection machines and resulting new product
FR2314681A1 (en) * 1975-06-18 1977-01-14 Vigneron Et Cie Ets Direct moulding method for making sandals - includes placing inner sole and upper in mould
FR2484215A1 (en) * 1980-06-13 1981-12-18 Piraud Robert Process for making plastics sports shoe - has bands of plastics material mounted on to supple sock fitted on core

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1146919A (en) * 1956-03-23 1957-11-18 Special application of thermoplastic injection machines and resulting new product
FR2314681A1 (en) * 1975-06-18 1977-01-14 Vigneron Et Cie Ets Direct moulding method for making sandals - includes placing inner sole and upper in mould
FR2484215A1 (en) * 1980-06-13 1981-12-18 Piraud Robert Process for making plastics sports shoe - has bands of plastics material mounted on to supple sock fitted on core

Also Published As

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FR2766067A1 (en) 1999-01-22
FR2766067B1 (en) 1999-09-17

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